The Cortex-A series is a family of high-performance processors designed by ARM Holdings. These processors are commonly used in smartphones, tablets, and other embedded systems, providing efficient computing power while maintaining low energy consumption. They support advanced features like multi-core processing and high-definition graphics. Cortex-A processors are built on the ARM architecture, which allows for flexibility and scalability in various applications. They are optimized for running complex operating systems and applications, making them suitable for both consumer and industrial devices. The series includes different models, each tailored for specific performance and power requirements.